WO2021227981A1

WO2021227981A1 - Information sending method, and device

Info

Publication number: WO2021227981A1
Application number: PCT/CN2021/092334
Authority: WO
Inventors: 薛祎凡; 张健; 李超君
Original assignee: 华为技术有限公司
Priority date: 2020-05-15
Filing date: 2021-05-08
Publication date: 2021-11-18
Also published as: CN113676291B; CN113676291A

Abstract

Disclosed are an information sending method, and a device. The method comprises: generating hybrid automatic repeat request acknowledgement (HARQ-ACK) of a first device; and the first device sending the HARQ-ACK of the first device to a second device, wherein a codebook size of the HARQ-ACK of the first device is related to the number of hybrid automatic repeat request (HARQ) processes of the first device. By using the method and the device provided by the present application, a codebook size of HARQ-ACK can be optimized according to the number of HARQ processes, and uplink transmission resources can be saved on.

Description

Method and equipment for sending information

This application claims the priority of a Chinese patent application filed with the State Intellectual Property Office of China with application number 202010413298.4 on May 15, 2020, and the priority of a Chinese patent application whose invention title is "a method and equipment for sending information". The entire content is incorporated into this application by reference.

Technical field

This application relates to the field of wireless communication technology, and in particular to a method and equipment for sending information.

Background technique

In the data transmission process of the long-term evolution (LTE) system, the hybrid automatic repeat request (HARQ) technology is mainly used to ensure the correctness of the transmitted data while reducing the number of retransmissions. HARQ technology is a technology formed by combining forward error correction (FEC) and automatic repeat request (ARQ). The main principle is: adding redundant information through FEC at the sending end , So that the receiving end can correct some errors, and for the errors that the receiving end cannot correct, retransmission. The working process is specifically as follows: the sending end sends a data packet to the receiving end, and the data packet carries redundant information for correcting errors. After receiving the data packet, the receiving end will use a check code (such as a CRC check code) to check whether the received data packet is wrong. If there is no error in the check, then affirmative confirmation information (for example, ACK) is sent to the sending end, and the sending end will continue to send the next data packet after receiving the affirmative confirmation information. If there is an error in the check and the error cannot be corrected, the receiving end sends negative confirmation information (for example, NACK) to the sending end, and the sending end will resend the above-mentioned data packet. In the LTE system, the positive confirmation information and the negative confirmation information sent by the receiving end are collectively referred to as HARQ-ACK information.

As shown in Figure 1, HARQ uses a stop-and-wait protocol to send data, such as Transport Block (TB) (0, 1, 2, 3, 4 as shown in the figure). According to the stop-and-wait protocol, the sender sends a TB and then stops and waits for confirmation/feedback information. The receiving end will use 1-bit information to confirm the TB in the affirmative (ACK) or negative (NACK). Therefore, the new data block can only be transmitted after the previous data block is successfully transmitted. After each transmission, the sender stops and waits for confirmation, which will cause the throughput of the communication system to be very low. In order to improve the throughput of the communication system, the concept of HARQ process has been introduced from LTE, and has been used in the new communication protocol (new radio, NR) system. As shown in Figure 2, by using multiple HARQ processes and distinguishing them by different HARQ process number (HARQ process number) or HARQ process ID (HARQ process ID), the current HARQ process (HARQ 0, as shown in the figure H0) While waiting for confirmation information, the sender can use one or more HARQ processes (HARQ 1, HARQ 2, HARQ 3, as shown in the figure H1, H2, H3) to continue sending data. Specifically, the UE uses HARQ processes H1, H2, and H3 to continue sending TB (1,2,3 as shown in the figure) after HARQ process H0 sends TB (as shown in 0), without having to wait until H0 is received After the confirmation message of TB(0). Therefore, in this application scenario, how to generate the HARQ-ACK can be improved, and the codebook size of the HARQ-ACK can be optimized accordingly.

Summary of the invention

This application provides a method and device for sending information, which can optimize the codebook size of the HARQ-ACK to be sent, thereby saving uplink transmission resources for the UE.

In the first aspect, the present application provides a method for sending information. The method includes: a first device generates a hybrid automatic repeat request determination information HARQ-ACK of the first device; and the first device sends the information of the first device to the second device HARQ-ACK, where the codebook size of the HARQ-ACK of the first device is related to the number of HARQ processes of the first device's hybrid automatic repeat request. Since the codebook size of the HARQ-ACK is related to the number of HARQ processes of the first device, the codebook size can be optimized, thereby saving uplink transmission resources for the first device and reducing the occupation of network resources.

According to the first aspect, in the first implementation manner of the first aspect, generating the HARQ-ACK of the first device includes, according to the instruction information sent by the second device, in the first generation mode, the second generation mode, and the third generation mode One of the methods to generate the HARQ-ACK of the first device, where the first generation method is a semi-static codebook generation method, and the first generation method generates the first device according to the candidate position of the physical downlink shared channel PDSCH and the K1 set The second generation method is the dynamic codebook generation method, and the second generation method generates the HARQ-ACK of the first device according to the data allocation indicator DAI in the downlink control information DCI, and the third generation method is based on the HARQ process To generate the HARQ-ACK of the first device. Among them, the K1 value is the time interval between the PDSCH carrying downlink data and the HARQ-ACK feedback information of the downlink data, in units of time slots, and the K1 set is the possible value of the aforementioned time interval statically configured by the second device to the first device The second device dynamically instructs the first device to use a specific K1 value in the K1 set during each data scheduling. In different situations, such as different network environments/situations, the first device generates HARQ-ACK through different generation methods through the indication information sent by the second device, which improves the flexibility of HARQ-ACK generation and is beneficial to Improve the uplink transmission efficiency of the first device.

According to the first implementation manner of the first aspect, in the second implementation manner of the first aspect, the indication information includes a first threshold, and according to the indication information sent by the second device, the first generation mode, the second generation mode, and the third One of the generation methods to generate the HARQ-ACK of the first device includes: when the number of HARQ processes is less than the first threshold, generating the HARQ-ACK of the first device in a third generation manner; and when the number of HARQ processes is greater than When it is equal to or equal to the first threshold, the HARQ-ACK of the first device is generated in the first generation mode or in the second generation mode. When the number of HARQ processes is less than the first threshold, it means that the number of HARQ processes used by the first device is small. At this time, the HARQ-ACK generated by the third generation method can make the codebook size smaller, which is beneficial to improve the performance of the first device. Uplink transmission efficiency.

According to the first implementation manner of the first aspect, in the third implementation manner of the first aspect, the indication information is used to determine that when the first device receives downlink data on the target bandwidth part BWP, the first generation mode and the second generation mode are used. One of the third generation manners to generate the HARQ-ACK of the first device, where the HARQ-ACK of the first device is the HARQ-ACK of the downlink data on the target BWP. Since the first device may jump/switch on a different BWP based on the configuration of the second device, when the first device is on the target BWP, it can be instructed to generate HARQ-ACK in a specific way to match The target BWP where it is located helps to improve the uplink transmission efficiency of the first device on the target BWP.

According to any one of the first to third implementation manners of the first aspect above, in the fourth implementation manner of the first aspect, the method further includes: receiving radio resource control RRC information or media access from the second device Control layer control unit MAC CE information or downlink control information DCI, including indication information.

According to the fourth implementation manner of the first aspect, in the fifth implementation manner of the first aspect, the method further includes: the RRC includes a system information block SIB, and the SIB includes indication information.

According to any one of the first to fifth implementation manners of the first aspect above, in the sixth implementation manner of the first aspect, the third generation manner further determines the corresponding HARQ process according to the sequence number of the HARQ process. The position of the feedback bit in the HARQ-ACK of the first device.

According to the first aspect, in the seventh implementation manner of the first aspect, generating the HARQ-ACK of the first device includes: determining the first codebook size of the HARQ-ACK of the first device, the first codebook size and the first generation The method is related; the second codebook size of the HARQ-ACK of the first device is determined, and the second codebook size is related to the third generation method; when the first codebook size is less than or equal to the second codebook size, the first device’s HARQ-ACK is generated in the first generation method and has the first codebook size, where the first generation method generates the HARQ-ACK of the first device according to the candidate position of the physical downlink shared channel PDSCH and the K1 set; When the codebook size is greater than the second codebook size, the HARQ-ACK of the first device is generated in the third generation method and has the second codebook size, where the third generation method generates the first device according to the number of HARQ processes HARQ-ACK. By comparing the size of the HARQ-ACK codebook size related to different generation methods, determine the HARQ-ACK with a smaller codebook size for the first device, and optimize the HARQ-ACK codebook without changing the feedback information conveyed by the HARQ codebook. Number of feedback bits.

According to the seventh implementation manner of the first aspect, in the eighth implementation manner of the first aspect, the first device has multiple activated cells, and the HARQ-ACK of the first device generated in the first generation manner is The HARQ-ACK of the first device with the first codebook size generated by traversing each of the multiple activated cells in the first generation method; and the HARQ-ACK of the first device generated in the third generation method , Is the HARQ-ACK of the first device with the second codebook size generated by traversing each of the multiple activated cells in the third generation mode.

According to the first aspect, in the ninth implementation manner of the first aspect, the first device has multiple activated cells, and generating the HARQ-ACK of the first device includes: generating multiple cells corresponding to the multiple activated cells The HARQ-ACK corresponding to the cell is cascaded to generate the HARQ-ACK of the first device, wherein generating each HARQ-ACK corresponding to the cell includes: determining the HARQ-ACK corresponding to the cell The first codebook size is related to the first generation method; the second codebook size of the HARQ-ACK corresponding to the cell is determined, and the second codebook size is related to the third generation method; when the first code When the current size is less than or equal to the second codebook size, the HARQ-ACK corresponding to the cell is generated in the first generation method and has the first codebook size; when the first codebook size is greater than the second codebook size, and The HARQ-ACK corresponding to the cell is generated in the third generation mode and has the second codebook size. By comparing the size of the HARQ-ACK codebook size related to different generation methods on each cell, the HARQ-ACK with a smaller codebook size is determined for each cell. Therefore, the first device generated after the concatenation HARQ-ACK has a minimized codebook size, which minimizes the number of feedback bits without changing the feedback information conveyed by the HARQ codebook.

According to the first aspect, or any one of the foregoing implementation manners of the first aspect, in the tenth implementation manner of the first aspect, the number of HARQ processes is the number of HARQ processes supported by the first device, or is configured by the first device Number of HARQ processes.

In the second aspect, this application provides a method for information processing, the method includes: receiving the HARQ-ACK of the hybrid automatic repeat request determination information of the first device; processing the HARQ-ACK according to the codebook size of the HARQ-ACK; wherein, The codebook size of HARQ-ACK is related to the number of HARQ processes of hybrid automatic repeat request of the first device.

According to the second aspect, in the first implementation manner of the second aspect, the method further includes: sending instruction information to the first device to instruct the first device to use any of the first generation mode, the second generation mode, and the third generation mode One is to generate HARQ-ACK, where the first generation method is a semi-static codebook generation method, and the first generation method generates HARQ-ACK according to the candidate position of the physical downlink shared channel PDSCH and the K1 set, and the second generation method is Dynamic codebook generation mode, and the second generation mode generates HARQ-ACK according to the data allocation indication DAI in the downlink control information DCI, and the third generation mode generates HARQ-ACK according to the number of HARQ processes. By instructing the first device to generate HARQ-ACK in one of the three generation methods, the flexibility of generating HARQ-ACK can be improved, that is, according to actual conditions, such as actual network conditions, instructing the first device to generate HARQ-ACK The way.

According to the first implementation manner of the second aspect, in the second implementation manner of the second aspect, the indication information includes a first threshold for instructing the first device to compare the first threshold with the number of HARQ processes according to the first threshold. One of the generation method, the second generation method, and the third generation method to generate HARQ-ACK. When the number of HARQ processes of the first device is less than the first threshold, it means that the number of HARQ processes used by the first device is small. At this time, the HARQ-ACK generated by the third generation method can make the codebook size smaller, which is beneficial to reduce Network resource occupation.

According to the first implementation manner of the second aspect, in the third implementation manner of the second aspect, the indication information is used to instruct the first device to use the first generation mode and the second generation mode when receiving downlink data on the BWP of the target bandwidth. 1. One of the third generation methods to generate HARQ-ACK, where HARQ-ACK is HARQ-ACK of downlink data on the target BWP. Since the second device can configure the first device to jump/switch on a different BWP, when the second device configures the first device to be on the target BWP, it can instruct the first device to generate HARQ-ACK in a specific way , So as to match the target BWP where it is located, which is beneficial to reduce network resource occupation.

According to any one of the first to third implementation manners of the second aspect above, in the fourth implementation manner of the second aspect, sending the instruction information to the first device includes sending the instruction information including the instruction information to the first device Radio resource control RRC information or media access control layer control unit MAC CE information or downlink control information DCI.

In a third aspect, the present application provides a first device. The first device includes: a processor, configured to generate HARQ-ACK of the first device's hybrid automatic repeat request determination information; and a transceiver, configured to send the first device to the second device. The HARQ-ACK of the device, where the codebook size of the HARQ-ACK of the first device is related to the number of HARQ processes of the first device's hybrid automatic repeat request. Since the codebook size of the HARQ-ACK is related to the number of HARQ processes of the first device, the codebook size can be optimized, thereby saving uplink transmission resources for the first device and reducing the occupation of network resources.

According to the third aspect, in the first implementation manner of the third aspect, the transceiver is further configured to receive the instruction information of the second device, and the processor uses the instruction information in the first generation mode, the second generation mode, and the third generation mode. The first generation method is a semi-static codebook generation method, and the first generation method generates the first device's HARQ-ACK according to the candidate position of the physical downlink shared channel PDSCH and the K1 set. HARQ-ACK, the second generation method is a dynamic codebook generation method, and the second generation method generates the HARQ-ACK of the first device according to the data allocation indicator DAI in the downlink control information DCI, and the third generation method is based on the HARQ process Quantity to generate the HARQ-ACK of the first device. In different situations, such as different network environments/situations, the processor generates HARQ-ACK through different generation methods through the instruction information sent by the second device, which improves the flexibility of HARQ-ACK generation and is conducive to improving The uplink transmission efficiency of the first device.

According to the third aspect, in the second implementation manner of the third aspect, the processor is further configured to: determine a first codebook size of HARQ-ACK of the first device, where the first codebook size is related to the first generation mode; The second codebook size of the HARQ-ACK of the first device. The second codebook size is related to the third generation mode; the HARQ-ACK of the first device is determined, where, when the first codebook size is less than or equal to the second codebook size In terms of size, the HARQ-ACK of the first device is generated in the first generation method and has the first codebook size. The first generation method generates the HARQ-ACK of the first device according to the candidate position of the physical downlink shared channel PDSCH and the K1 set. ACK, and when the first codebook size is greater than the second codebook size, the HARQ-ACK of the first device is generated in the third generation method and has the second codebook size, and the third generation method is based on the number of HARQ processes Generate the HARQ-ACK of the first device. The processor determines the HARQ-ACK with a smaller codebook size by comparing the size of the HARQ-ACK codebook size related to different generation methods, and optimizes its feedback without changing the feedback information conveyed by the HARQ codebook. Number of bits.

According to the third aspect, or the first implementation manner of the third aspect, in the third implementation manner of the third aspect, the indication information includes a first threshold, and the processor further compares the first threshold with the number of HARQ processes, and when the HARQ process When the number of is less than the first threshold, the processor generates the HARQ-ACK of the first device in the third generation mode, and when the number of HARQ processes is greater than or equal to the first threshold, the processor generates the HARQ-ACK in the first generation mode or in the second generation mode. In this way, the HARQ-ACK of the first device is generated. When the number of HARQ processes is less than the first threshold, it means that the number of HARQ processes used by the first device is small. At this time, the processor generates HARQ-ACK through the third generation method to make the codebook size smaller, which is beneficial to improve the first device. The upstream transmission efficiency of the device.

According to the third aspect, or the first implementation manner of the third aspect, in the fourth implementation manner of the third aspect, the processor determines according to the instruction information that when the first device receives downlink data on the target bandwidth part BWP, One of the generation method, the second generation method, and the third generation method is used to generate the HARQ-ACK of the first device, where the HARQ-ACK of the first device is the HARQ-ACK of the downlink data on the target BWP. Since the first device may jump/switch on different BWPs based on the configuration of the second device, the processor determines according to the instruction information that when the first device is on the target BWP, it generates HARQ in a specific way. -ACK, so as to match the target BWP where the first device is located, which is beneficial to improve the uplink transmission efficiency of the first device on the target BWP. According to the third aspect and any one of the first, third, and fourth implementation manners of the third aspect, in the fifth implementation manner of the third aspect, the transceiver receives radio resource control RRC information from the second device Or media access control layer control unit MAC CE information or downlink control information DCI, which includes indication information.

According to the third aspect or the fifth implementation manner of the third aspect, in the sixth implementation manner of the third aspect, the RRC includes a system information block SIB, and the SIB includes indication information.

According to the third aspect, and any one of the first, third to sixth implementation manners of the third aspect above, in the seventh implementation manner of the third aspect, the third generation manner is further based on the sequence number of the HARQ process To determine the position of the feedback bit corresponding to each HARQ process in the HARQ-ACK of the first device.

According to the third aspect or the second implementation manner of the third aspect, in the eighth implementation manner of the third aspect, the first device has multiple activated cells, and the first device generated by the processor in the first generation manner The HARQ-ACK is the HARQ-ACK of the first device with the first codebook size generated by traversing each of the multiple activated cells in the first generation mode; and the processor generates the HARQ-ACK in the third generation mode The HARQ-ACK of the first device is the HARQ-ACK of the first device with the second codebook size generated by traversing each of the multiple activated cells in the third generation mode.

According to the third aspect, in the ninth implementation manner of the third aspect, the first device has multiple activated cells, and the processor generating the HARQ-ACK of the first device includes: the processor generates multiple activated cells for the multiple activated cells. A HARQ-ACK corresponding to a cell, and the processor cascades a plurality of HARQ-ACKs corresponding to the cell to generate the HARQ-ACK of the first device, wherein the processor generating each HARQ-ACK corresponding to the cell includes : The processor determines the first codebook size of the HARQ-ACK corresponding to the cell, and the first codebook size is related to the first generation mode; the processor determines the second codebook size of the HARQ-ACK corresponding to the cell, and the first codebook size is The second codebook size is related to the third generation method; when the first codebook size is less than or equal to the second codebook size, the HARQ-ACK corresponding to the cell is generated in the first generation method and has the first codebook size; When the first codebook size is greater than the second codebook size, the HARQ-ACK corresponding to the cell is generated in the third generation mode and has the second codebook size. The processor compares the size of the HARQ-ACK codebook size related to different generation methods on each cell, and determines the HARQ-ACK with a smaller codebook size for each cell. Therefore, the first generated after concatenation The HARQ-ACK of the device has a minimized codebook size, which minimizes the number of feedback bits without changing the feedback information conveyed by the HARQ codebook.

According to the third aspect or any implementation manner of the third aspect above, in the tenth implementation manner of the third aspect, the number of HARQ processes is the number of HARQ processes supported by the first device, or the HARQ configured by the first device The number of processes.

In a fourth aspect, the present application provides a second device. The second device includes: a transceiver, configured to receive the HARQ-ACK of the first device's hybrid automatic repeat request determination information; and a processor, configured to perform according to the HARQ-ACK codebook Size, processing HARQ-ACK, HARQ-ACK codebook size is related to the number of hybrid automatic repeat request HARQ processes of the first device.

According to the fourth aspect, in the first implementation manner of the fourth aspect, the transceiver is further configured to: send instruction information to the first device, where the instruction information is used to instruct the first device to use the first generation mode, the second generation mode, and the second generation mode. HARQ-ACK is generated in one of three generation methods, where the first generation method is a semi-static codebook generation method, and the first generation method generates HARQ-ACK according to the candidate position of the physical downlink shared channel PDSCH and the K1 set, The second generation method is a dynamic codebook generation method, and the second generation method generates HARQ-ACK according to the data allocation indication DAI in the downlink control information DCI, and the third generation method generates HARQ-ACK according to the number of HARQ processes. By instructing the first device to generate HARQ-ACK in one of the three generation methods, the flexibility of generating HARQ-ACK can be improved, that is, according to actual conditions, such as actual network conditions, instructing the first device to generate HARQ-ACK The way.

According to the first implementation manner of the fourth aspect, in the second implementation manner of the fourth aspect, the indication information sent by the transceiver to the first device includes a first threshold, which is used to instruct the first device according to the first threshold and the HARQ process. As a result of the quantitative comparison, HARQ-ACK is generated in one of the first generation mode, the second generation mode, and the third generation mode. When the number of HARQ processes of the first device is less than the first threshold, it means that the number of HARQ processes used by the first device is small. At this time, the HARQ-ACK generated by the third generation method can make the codebook size smaller, which is beneficial to reduce Network resource occupation.

According to the first implementation manner of the fourth aspect, in the third implementation manner of the fourth aspect, the instruction information sent by the transceiver to the first device is used to instruct the first device to use the first The HARQ-ACK is generated in one of a generation method, a second generation method, and a third generation method, where the HARQ-ACK is the HARQ-ACK of the downlink data on the target BWP. Since the second device can configure the first device to jump/switch on a different BWP, when the second device configures the first device to be on the target BWP, it can instruct the first device to generate HARQ-ACK in a specific way , So as to match the target BWP where it is located, which is beneficial to reduce network resource occupation.

According to any one of the first to third implementation manners of the fourth aspect above, in the fourth implementation manner of the fourth aspect, the transceiver sending the instruction information to the first device includes, and the transceiver sending the instruction information to the first device includes The indication information is radio resource control RRC information or media access control layer control unit MAC CE information or downlink control information DCI.

In a fifth aspect, the present application provides a communication system including a first device and a second device. The first device includes a processor and a transceiver, where the processor of the first device is used to generate the HARQ-ACK of the first device's hybrid automatic repeat request determination information, and the transceiver of the first device is used to send the first device to the second device The HARQ-ACK of the first device, where the codebook size of the HARQ-ACK of the first device is related to the number of HARQ processes of the first device's hybrid automatic repeat request. The second device includes a transceiver and a processor. The transceiver of the second device is used to receive the HARQ-ACK of the first device, and the processor of the second device is used to process the HARQ of the first device according to the HARQ-ACK codebook size. -ACK. Since the HARQ-ACK codebook size of the first device is related to the number of HARQ processes of the first device, the codebook size can be optimized, thereby saving uplink transmission resources for the first device and reducing the occupation of network resources.

According to the fifth aspect, in the first implementation manner of the fifth aspect, the transceiver of the second device is further configured to send instruction information to the first device, and the instruction information is used to instruct the first device to use the first generation mode, the second One of the generation method and the third generation method is used to generate the HARQ-ACK of the first device, wherein the transceiver of the first device is also used to receive the instruction information of the second device, and the processor of the first device according to the instruction information The HARQ-ACK of the first device is generated in one of the first generation method, the second generation method, and the third generation method. The first generation method is a semi-static codebook generation method, and the first generation method is based on the physical The candidate position of the downlink shared channel PDSCH and the K1 set are used to generate the HARQ-ACK of the first device. The second generation method is the dynamic codebook generation method. The second generation method generates the second generation method according to the data allocation indicator DAI in the downlink control information DCI. For the HARQ-ACK of a device, the third generation method is to generate the HARQ-ACK of the first device according to the number of HARQ processes of the first device. In different situations, such as different network environments/situations, the first device can generate HARQ-ACK in different generation methods through the instruction information sent by the second device to the first device, thereby improving the HARQ-ACK generation It is flexible and helps to improve the uplink transmission efficiency of the first device.

According to the fifth aspect, in the second implementation manner of the fifth aspect, the processor of the first device is further configured to determine the first codebook size of the HARQ-ACK of the first device, and the first codebook size is the same as the first generated codebook size. The method is related; the second codebook size of the HARQ-ACK of the first device is determined, and the second codebook size is related to the third generation method; and the HARQ-ACK of the first device is determined, wherein, when the first codebook size is less than Or equal to the second codebook size, the HARQ-ACK of the first device generated by the processor of the first device is generated in the first generation mode and has the first codebook size, where the first generation mode is semi-static Codebook generation method, the first generation method generates the HARQ-ACK of the first device according to the candidate position of the physical downlink shared channel PDSCH and the K1 set; and when the first codebook size is greater than the second codebook size, the first The HARQ-ACK of the first device generated by the processor of a device is generated in the third generation mode and has the second codebook size, wherein the third generation mode generates the HARQ-ACK of the first device according to the number of HARQ processes. ACK. The first device can determine the HARQ-ACK with a smaller codebook size by comparing the size of the HARQ-ACK codebook related to different generation methods, and optimize the HARQ-ACK without changing the feedback information conveyed by the HARQ codebook. Number of feedback bits.

In a sixth aspect, the present application provides a computer-readable storage medium, including instructions, which when run on a communication device, cause the communication device to execute the method in any of the above implementations.

In a seventh aspect, the present application provides a chip, which is connected to a memory, and is used to read and execute a software program stored in the memory to implement the method in any of the above implementations.

In an eighth aspect, the present application provides a device including a processor and a memory, characterized in that a program or instruction is stored on the memory, and when the program or instruction is executed by the processor, the method in any of the above implementations is implemented.

Description of the drawings

Figure 1 is a schematic diagram of data receiving and sending;

Figure 2 is another schematic diagram of data receiving and sending;

FIG. 3 is a schematic diagram of a communication system provided by an embodiment of the application;

Figure 4 is a schematic diagram of a time slot for downlink data transmission;

5A and 5B are schematic diagrams and flowcharts of the first generation method;

6A and 6B are schematic diagrams and flowcharts of the second generation method;

FIG. 7 is a flowchart of a third generation method provided by an embodiment of the application;

FIG. 8A is a flowchart of an information sending method provided by an embodiment of this application;

FIG. 8B is a flowchart of an information processing method provided by an embodiment of this application;

FIG. 9A is a flowchart of an information sending method provided by another embodiment of this application;

FIG. 9B is a flowchart of an information sending method provided by another embodiment of this application;

FIG. 10 is a flowchart of an information sending method provided by another embodiment of this application;

FIG. 11 is a flowchart of an information sending method provided by another embodiment of this application;

12A and 12B are flowcharts of an information sending method provided by another embodiment of this application;

FIG. 13 is a schematic diagram of a communication system provided by another embodiment of this application;

FIG. 14 is a schematic structural diagram of a base station provided by an embodiment of the application;

FIG. 15 is a schematic structural diagram of a UE provided by an embodiment of this application;

FIG. 16 is a schematic diagram of an information sending device provided by an embodiment of the application;

FIG. 17 is a schematic diagram of an information processing device provided by an embodiment of the application;

FIG. 18 is a schematic diagram of a communication system provided by another embodiment of this application.

Detailed ways

The present application provides a method and device for sending information, which can determine the codebook size of hybrid automatic retransmission request information in a scenario where the search space monitoring period and the monitoring offset value are divided. Among them, the method and the device are based on the same inventive concept. Since the principles of the method and the device to solve the problem are similar, the embodiments of the method and the device can be referred to each other, and the repetition will not be repeated.

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

For ease of understanding, the description of concepts related to the embodiments of the present application is given as an example for reference, as follows:

1) A base station is a device deployed in a radio access network to provide a wireless communication function for User Equipment (UE). The base station 101 may include various forms of macro base stations, micro base stations (also referred to as small stations), relay stations, access points, and so on. In systems using different radio access technologies, the names of devices with base station functions may be different. For example, in LTE systems, they are called evolved NodeB (evolved NodeB, eNB, or eNodeB). In the 3rd generation (3G) system, it is called Node B (Node B), and in the NR system, it is called gNB, etc. For ease of description, in all the embodiments of the present application, devices that provide UEs with wireless communication functions are collectively referred to as base stations.

2) UE, which may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices, or other processing devices connected to a wireless modem. The UE may also be called a mobile station (mobile station, MS for short), a terminal (terminal), a terminal equipment (terminal equipment), and may also include a subscriber unit (subscriber unit), a cellular phone (cellular phone), and a smart phone (smart phone). phone), wireless data card, personal digital assistant (PDA) computer, tablet computer, wireless modem (modem), handheld, laptop computer, cordless phone Or wireless local loop (wireless local loop, WLL) station, machine type communication (machine type communication, MTC) terminal, etc. For ease of description, in all embodiments of this application, the above-mentioned devices are collectively referred to as UE.

3) The communication system can be a variety of radio access technology (RAT) systems, such as code division multiple access (CDMA), time division multiple access (TDMA), frequency Frequency division multiple access (FDMA), orthogonal frequency-division multiple access (OFDMA), single carrier frequency-division multiple access (single carrier FDMA, SC-FDMA) and other systems. The term "system" can be used interchangeably with "network". The CDMA system can implement wireless technologies such as universal terrestrial radio access (UTRA) and CDMA2000. UTRA can include wideband CDMA (wideband CDMA, WCDMA) technology and other CDMA variants. CDMA2000 can cover the interim standard (IS) 2000 (IS-2000), IS-95 and IS-856 standards. The TDMA system can implement wireless technologies such as the global system for mobile communication (GSM). OFDMA system can realize such as evolved universal wireless terrestrial access (evolved UTRA, E-UTRA), ultra mobile broadband (ultra mobile broadband, UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash OFDMA And other wireless technologies. UTRA and E-UTRA are UMTS and UMTS evolved versions. 3GPP is a new version of UMTS using E-UTRA in long term evolution (LTE) and various versions based on LTE evolution. In addition, the communication system may also be suitable for future-oriented communication technologies. As long as the communication system adopting the new communication technology includes the establishment of a bearer, the technical solution provided in the embodiment of the present application is applicable. The system architecture and business scenarios described in the embodiments of this application are intended to more clearly illustrate the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided in the embodiments of this application. Those of ordinary skill in the art will know that with the network With the evolution of architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are equally applicable to similar technical problems.

4) Hybrid Automatic Repeat Request (HARQ) information is mainly used to determine the data sent by the sender, and the hybrid automatic repeat request information can carry ACK (OK), NACK (deny), and At least one of discontinuous transmission (DTX). For example, if the second device sends a piece of data to the first device, after the second device receives the data and verifies that the data is error-free, the first device can send the hybrid automatic repeat request message to the second device. The hybrid automatic repeat request message can carry ACK. In the same way, if the second device verifies the data error, then the first device can send hybrid automatic repeat request message to the second device. The hybrid automatic repeat request message contains Can carry NACK. In an example, the hybrid automatic repeat request information may be referred to as hybrid automatic repeat request acknowledgement (HARQ-ACK) information. If it is based on the transport block (transport block, TB) transmission, when the HARQ-ACK information is fed back, each TB uses 1 bit to indicate its reception status. When the reception fails (such as the CRC check failure), the entire transmission is retransmitted. TB. If it is based on code block group (CBG) transmission, a TB is composed of N (where N is greater than or equal to 1) CBGs. When the HARQ-ACK information is fed back, each CBG is represented by 1 bit In its reception status, when the reception fails, only the failed CBG is retransmitted, without the need to retransmit the entire TB. Since the UE generates one bit of confirmation information for each CBG, that is, the TB generates N bits of feedback information.

5) The HARQ-ACK codebook size is used to indicate the size of the hybrid automatic repeat request information, specifically, it can indicate the number of bits of the feedback information in the hybrid automatic repeat request. In an implementation manner, the HARQ-ACK codebook may be a semi-static codebook, as shown in FIG. 5. Among them, the semi-static codebook (also known as TYPE1 codebook) is based on the semi-static configuration parameters of the radio resource control (Radio Resource Control, RRC) signaling (for example, uplink and downlink format, K1 set, and time domain resource allocation). , TDRA) table, whether space division multiplexing, whether based on CBG transmission, the number of configured/activated carriers) to determine, the size of the codebook will not dynamically change with the actual data scheduling situation. In another implementation, the HARQ-ACK codebook can be a dynamic codebook (also known as TYPE2codebook), as shown in Figure 6, except for the space division multiplexing configured by the base station, CBG-based transmission, and configured/activated carriers In addition to the number and other parameters, the dynamic codebook is based on the count DAI (counter DAI, also called C-DAI) and total DAI (also called T-DAI) information in the Downlink Control Information (DCI) Determine, the size of the codebook will dynamically change with the actual data scheduling situation. The embodiment of the present application also provides a HARQ-ACK codebook generation method. The codebook is determined according to the HARQ configuration and the number of HARQ processes supported or used by the UE. The size of the codebook can be adjusted according to the actual configuration of the UE. The number of HARQ processes, or the number of HARQ processes supported by the UE, or dynamically changes due to the UE switching between different bandwidth parts (BWP). The semi-static codebook generation method (hereinafter referred to as the first generation method), the dynamic codebook generation method (hereinafter referred to as the second generation method), and the method of generating HARQ_ACK according to the HARQ process (hereinafter referred to as the first generation method) will be described in detail in the embodiments of the application later. Three generation methods), and the information sending method and information processing method realized by the combination of the above three methods. For the convenience of description, in all embodiments of this application, the codebook size of HARQ-ACK refers to the bit length of the feedback information in HARQ-ACK.

6) HARQ process (HARQ process). In a HARQ process, after the base station schedules a data transmission, it must wait for the UE to send HARQ-ACK information to the base station before scheduling the next data transmission. Multiple HARQ processes refer to multiple concurrent HARQ processes. When a base station uses multiple HARQ, data transmission in one HARQ process does not receive feedback, and another HARQ process can also be used to schedule data transmission. For ease of description, in all the embodiments of the present application, the "HARQ process" and the "number of HARQ processes" mentioned uniformly represent the number of HARQ processes supported or configured by the UE. In addition, if two data blocks, such as two TBs, are simultaneously transmitted through space division multiplexing, the two TBs can belong to the same HARQ process or different HARQ processes, as in this embodiment of the application. No specific restrictions are made.

7) Downlink control information DCI, including downlink data scheduling information, to indicate the time-frequency resource location and configuration parameters at which the UE can receive and demodulate downlink data, where the configuration parameters can be, for example, Modulation and Coding Scheme (MCS) ), redundancy version (Redundancy Version, RV), specific value of K1, and specific rows of the TDRA table. The base station sends the corresponding downlink data with the configuration parameters indicated by the DCI at the time-frequency resource position indicated by the DCI, so that the UE receives the downlink data with the corresponding parameters at the corresponding position. Wherein, the time interval between the Physical Downlink Shared Channel (PDSCH) carrying the downlink data and the HARQ-ACK feedback information of the downlink data is represented by the parameter K1, and the unit is a time slot. Specifically, the base station configures a K1 value set for the UE through RRC signaling, for example, K1={1,2,3}, and indicates to the UE that the specific K1 value is one of the set {1,2,3} through DCI . The base station also configures a TDRA table for the UE through RRC signaling. Each row includes the sequence number, K0 value, the start symbol and symbol length SLIV in a time slot, and the mapping type, and indicates the row index of the TDRA table for the UE through DCI. (Ie serial number).

8) Bandwidth part (BWP). In the new radio (NR) system, because the system bandwidth (for example, the bandwidth of a carrier component (CC)) can reach 200MHz or 400MHz, when the UE does not support such a large bandwidth, or it is desired to reduce the UE When the power consumption is high, the base station can configure a BWP for the UE, for example, a BWP with a bandwidth of 20 MHz, and the UE can communicate with the base station on the BWP. BWP can be divided into downlink BWP (Downlink BWP, DL BWP) and uplink BWP (Uplink BWP, UL BWP). In a cell, the base station can configure multiple DL BWPs and multiple UL BWPs for the UE, and activate one DL BWP and activate A UL BWP, the UE receives the downlink signal sent by the base station on the activated DL BWP, including but not limited to downlink control signaling, downlink data, channel state information reference signal (Channel State Information-Reference Signal, CSI-RS), etc.; The UE sends uplink signals on the activated UL BWP, including but not limited to, uplink control signaling, uplink data, scheduling request (Scheduling Request, SR), sounding reference signal (Sounding Reference Signal, SRS), and channel state information (Channel State) Information-Reference Signal, CSI) or Channel Quality Indicator (Channel Quality Indicator, CQI) feedback, etc. When the base station communicates with the UE on the activated DL BWP and UL BWP, the base station can activate another DL BWP (or UL BWP), and deactivate the current DL BWP (or the current UL BWP) at the same time, so that the UE Switch to the newly activated BWP to receive or send data. For example, if the UE receives a DCI instructing to switch to the second BWP on the first BWP, the UE switches from the first BWP to the second BWP.

9) Multiple refers to two or more than two, other quantifiers are similar.

10) "and/or" describes the association relationship of the associated objects, indicating that there can be three types of relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone. . The character "/" generally indicates that the associated objects before and after are in an "or" relationship.

In addition, it should be understood that in the description of this application, words such as "first" and "second" are only used for the purpose of distinguishing description, and cannot be understood as indicating or implying relative importance, nor can it be understood as indicating It may imply the order, and it does not limit that “first” and “second” are different types. In some embodiments of the present application, “first” and “second” can also be understood as the same indicator.

FIG. 3 shows a communication system 300 provided by an embodiment of the present application. The communication system 300 is mainly used in a wireless communication scenario, and may include a network device 301 and a user equipment (UE) 302. The network device 301 takes a base station as an example, and the UE 302 is a device that accesses the network through the base station 301.

The base station 301 is responsible for providing wireless access-related services for the UE 302, implementing wireless physical layer functions, resource scheduling and wireless resource management, quality of service (QoS) management, wireless access control, and mobility management functions.

In the embodiment of the present application, the base station 301 may send data to the UE 302 in a unit of a slot. As shown in Figure 4, base station 301 sends data to UE in time slot T0, which specifically includes two parts: Physical Downlink Control Channel (PDCCH) and Physical Downlink Shared Channel (PDSCH), of which PDCCH Downlink Control Information (DCI) can be carried in the PDSCH, and downlink data can be carried in the PDSCH.

In the embodiment of the present application, when the UE 302 and the base station 301 communicate, a hybrid automatic repeat request (Hybrid Automatic Repeat Request, HARQ) technology may be used. The HARQ technology is a technology that combines forward error correction (FEC) and automatic repeat request (ARQ). The main principle is: adding redundancy at the sending end through FEC. The remaining information enables the receiving end to correct some errors, and for errors that the receiving end cannot correct, the sending end is requested to retransmit.

In the embodiment of the present application, the working process may be specifically as follows: in the time slot T0, the base station 301 sends a downlink data packet to the UE 302. After the UE 302 receives the downlink data packet, it can use a check code (such as a CRC check code) to check whether the received data packet has an error. If the check is correct, for example, in the time slot T1, a positive feedback information (for example, ACK) is sent to the base station 301, and the base station 301 will continue to send the next data packet after receiving the positive feedback information. If there is an error in the check, the UE 302 sends negative feedback information (for example, NACK) to the base station 301 in the time slot T1, and the base station 301 will resend the data packet. In the embodiments of the present application, the above-mentioned positive feedback information, negative feedback information, ACK and NACK, etc., can be collectively referred to as hybrid automatic repeat request determination information HARQ-ACK.

In the embodiment of the present application, the base station 301 can semi-statically configure or dynamically indicate the uplink and downlink ratios of time slots in the entire wireless system frame, or the ratio of uplink and downlink time slots. In this way, a situation will occur. The feedback information of the downlink data of each time slot is fed back in the same time slot. Wherein, the feedback information of the multiple time slots constitutes a codebook of feedback information: HARQ-ACK codebook. At this time, for the design of the HARQ-ACK codebook, it is necessary to consider the bit length of the HARQ-ACK corresponding to the multiple time slots and the position of the HARQ-ACK corresponding to the multiple time slots in the codebook. /order.

Please refer to FIG. 5 and FIG. 6. FIG. 5 and FIG. 6 respectively show a schematic diagram and a flowchart of the first generation mode and the second generation mode of the HARQ-ACK codebook. Among them, the first generation method is the aforementioned semi-static codebook generation method, and the second generation method is the aforementioned dynamic codebook generation method.

The way of generating codebooks with semi-static HARQ-ACK technology is related to some parameters, for example, parameters configured semi-statically through radio resource control (Radio Resource Control, RRC) signaling: uplink and downlink format, K1 set, time domain resource allocation (time domain resource allocation, TDRA) form, etc. Based on these related parameters, the length of the HARQ codebook generated according to the semi-static HARQ-ACK technology is determined.

Among them, the unit of the parameter K1 is a time slot, which represents the time interval between the PDSCH and the corresponding HARQ-ACK. The K1 set configured for the UE through RRC signaling includes the possible values of K1 during each scheduling. In a specific scheduling, the DCI is used to instruct the UE to use a specific K1 value in the set. The TDRA table contains at least a sequence number column and a SLIV column. SLIV indicates the start symbol and symbol length in a time slot. The TDRA table configured for the UE through RRC signaling includes the start symbol and symbol length in the time slot during each scheduling. In a specific scheduling, the UE is instructed to use a specific row in the TDRA table through DCI, that is, including the specific values of the start symbol and the symbol length in the time slot.

When the UE determines the semi-static HARQ-ACK codebook, for example, the HARQ-ACK information sent by the UE on time slot n is for each possible K1 value in the K1 set, that is, in each time slot n-K1 Above, analyze the PDSCH candidate position (PDSCH candidate), determine whether PDSCH may be sent, and how many PDSCHs may be sent, so as to determine the final feedback bit length.

In a specific embodiment, the base station 301 configures a set of K1 values for the UE302, for example, K1={1,2,3}. When the UE sends HARQ-ACK information in time slot n, it will n-1, check how many bits need to be fed back on time slot n-2 and time slot n-3 respectively.

Referring to FIG. 5A, there are 6 rows in the TDRA table configured for the UE, represented by sequence numbers 0 to 5, and the symbol start position of each row in a time slot and the symbol length SLIV are shown in the figure. That is to say, on the time slot n-K1, according to the configuration of the base station to the UE, the UE has 6 possible PDSCH positions as shown in the figure. However, according to the actual uplink and downlink format, several symbols at the end of the time slot are configured as uplinks. Therefore, the possible positions of the PDSCH corresponding to sequence

numbers

4 and 5 cannot be used in this embodiment, and the PDSCH corresponding to sequence numbers 0 to 3 Maybe the location is valid.

Further, after determining that the possible positions of the PDSCH without uplink and downlink conflicts are sequence number 0 to sequence number 3, it is necessary to further compare whether these positions overlap. As shown in the figure, after the time slots are divided by the dotted lines L1 and L2, it can be seen that in sequence number 0 to sequence number 3, there are at most two possible non-overlapping PDSCH positions. These two non-overlapping possible positions are the candidate positions of PDSCH. . Therefore, in this time slot, a 2-bit HARQ-ACK will be generated.

If the uplink and downlink formats on time slot n-1, time slot n-2 and time slot n-3 are the same, the feedback information to be sent on time slot n is 6 bits in total, that is, the codebook size of HARQ-ACK It is 6 bits. The UE generates feedback bits according to the actual scheduling situation, which is 1 if it is ACK, and 0 if it is NACK or not scheduled. For example, if the UE is scheduled for 1 data block in time slot n-1, time slot n-2 is scheduled for 2 data blocks, time slot n-3 is scheduled for 1 data block, and the transmission is correct. Then the feedback information can be represented by 10 11 10, which is the HARQ-ACK codebook for the downlink data of these three time slots sent by the UE. If the first of the two data blocks in time slot n-2 is transmitted incorrectly, the second is transmitted correctly, and the other data blocks are transmitted correctly, the feedback information can be represented by 10 01 10, which is what the UE sends about these three data blocks. HARQ-ACK codebook for the downlink data of the time slot.

When the UE is configured with carrier aggregation (CA), feedback information on multiple component carriers (CC) may be fed back on the same carrier component. At this time, the feedback information on each carrier unit can be generated first, and then the feedback information can be cascaded to generate the final HARQ-ACK codebook.

FIG. 5B shows a flow chart of the method of the first generation mode A, which includes the following steps:

In step 502, the UE determines non-overlapping PDSCH candidate positions according to the TDRA table and the uplink and downlink format. Among them, the TDRA table and the uplink and downlink formats are configured by the base station to the UE. Specifically, the base station configures the above-mentioned parameters to the UE semi-statically through RRC signaling.

In step 504, the UE generates a first HARQ-ACK, that is, a semi-static HARQ-ACK, according to the K1 set and the PDSCH candidate position. The K1 set is a parameter semi-statically configured by the base station to the UE through RRC signaling. According to the K1 set and the PDSCH candidate position, the codebook size of the first HARQ-ACK can be determined.

See Figure 6A and Figure 6B. The way of generating the codebook with the dynamic HARQ-ACK technology is related to the data assignment indication (DAI) field included in the dynamic indication received by the UE.

Specifically, when the dynamic HARQ-ACK technology is adopted, the DCI sent by the base station to the UE includes the above-mentioned DAI, which is used to indicate the number of scheduled data blocks and guide the respective feedback information positions. When the UE needs to send feedback information, it feeds back the feedback information of the corresponding length according to the instructions of the DAI.

FIG. 6A shows that the UE is configured with carrier aggregation CA, in which each carrier unit CC is arranged in sequence according to the sequence number, shown as CC1, CC2, and CC3 in the figure. In order to count the data on different carrier units CC, DAI is further divided into two parameters: count DAI (counter DAI, also called C-DAI) and total DAI (also called T-DAI), which can be recorded as {C-DAI, T-DAI}. Among them, the count DAI represents how many time slots of the UE contain downlink transmission until the current carrier of the current time slot in the current feedback window, that is, the count DAI is numbered according to the transmission sequence of the current data block. The total DAI represents how many downlink transmissions the UE has on all carriers in the current feedback window up to the current time slot, that is, the total DAI is the sum of the data blocks transmitted in the current time slot and the previous time slot.

In the embodiment shown in FIG. 6A, on the three carrier units CC1, CC2, and CC3 configured by the UE, the feedback window schematically includes three time slots: time slot T0, time slot T1, and time slot T2. The feedback information corresponding to all the downlink data of the UE for these 3 carrier units are sent together in the 3 time slots shown in the figure. It can be seen that the UE is actually scheduled for 7 downlink data transmissions. In the time slot T0, there are 3 downlink data transmissions, so in the first time slot, the {C-DAI, T-DAI} of the downlink data block according to the sequence number of the carrier unit are CC1: {1,3}, CC2: {2,3} and CC3: {3,3}. In time slot T1, 2 more downlink data transmissions are scheduled, plus 3 downlink data transmissions in time slot T0, there are a total of 5 downlink data transmissions on all carrier units in the current feedback window, so in time slot T1 According to the sequence number of the carrier unit, the {C-DAI, T-DAI} of the downlink data block are CC2: {4,5}, CC3: {5,5}. Similarly, in time slot T2, after two more downlink data transmissions are scheduled, the {C-DAI, T-DAI} of the downlink data block according to the sequence number of the carrier unit are CC1: {6,7}, CC3: {7 ,7}. Therefore, when the UE generates a dynamic HARQ-ACK codebook, it determines that 7 bits need to be fed back according to the value of the total DAI, and determines that the feedback information of each data block corresponds to the dynamic HARQ-ACK code according to the value of the count DAI Position in this book.

FIG. 6B shows a flow chart of the method of the second generation method B, which includes the following steps:

In step 602, the UE receives a DCI including a DAI field from the base station, where the DAI indicates the number of scheduled data blocks. In the embodiment shown in FIG. 6A, DAI can be further denoted as a combination of two parameters {C-DAI, T-DAI}, which respectively indicate the order of the current scheduling data block and the data blocks scheduled on multiple carrier units total.

In step 604, the UE generates a second HARQ-ACK according to the indication of the DAI. Specifically, the codebook size of the second HARQ-ACK is indicated by the total DAI, and the position of the feedback information in the second HARQ-ACK is indicated by the count DAI.

When the UE generates the first HARQ-ACK according to the first generation mode A or the second HARQ-ACK according to the second generation mode B, the first or second HARQ-ACK can be determined by further configuring the following parameters for the UE through RRC signaling. The codebook size of ACK includes but not limited to the following parameters:

a) PDSCH-CodeBlockGroupTransmission, used to indicate that the UE is configured to transmit based on CBG. Each Transport Block (TB) received by the UE is composed of multiple Code Block Groups (CBG), such as G code blocks Group, where G≥1, in the HARQ-ACK generated by the UE, each CBG will use 1 bit to indicate its reception status;

b) harq-ACK-SpatialBundlingPUCCH, used to indicate that feedback information of only 1 TB is fed back after the feedback bits of 2 TBs scheduled in space division multiplexing are ANDed;

c) maxNrofCodeWordsScheduledByDCI, used to indicate that the UE is configured with one DCI to schedule 2 TBs.

FIG. 7 is a flowchart of the third generation method C provided by an embodiment of the application, including the following steps:

In step 702, the number of HARQ processes supported or configured by the UE is determined. The number of HARQ processes supported by the UE may be the number of HARQ processes reported by the UE when reporting the capability to the base station, or the number of HARQ processes dynamically indicated or semi-statically configured by the base station for the UE.

In an NR system, a UE can support up to 16 HARQ processes, and the number of HARQ processes actually used is limited by the capabilities of the UE. For example, the number of HARQ processes that can be supported by a reduced-capability UE (REDCAP UE) is small, for example 2 to 4 pieces. Secondly, the number of HARQ processes actually used by the UE is also subject to dynamic instructions or semi-static configuration of the base station 301. For example, even for a UE with a strong ability to support up to 16 HARQ processes, the base station can be based on actual network conditions. The number of HARQ processes configured for it is small, which may be, for example, 2 to 4. Therefore, when the UE generates HARQ-ACK according to the number of HARQ processes it is configured, the codebook size of the HARQ-ACK can be optimized, thereby improving the uplink transmission efficiency of the UE.

In step 704, the UE generates a third HARQ-ACK according to the number of HARQ processes (for example, the number of HARQ processes configured by the UE) and the HARQ process number. In a specific implementation, the third HARQ-ACK can be generated in the order of HARQ process numbers, that is, the position of the feedback information in the codebook of the third HARQ-ACK is arranged in sequence according to the order of the corresponding HARQ process numbers of.

In a specific embodiment, the number of HARQ processes supported or configured by the UE is P, where P≥1.

When the UE generates the third HARQ-ACK according to the third generation method C, the following parameters configured to the UE may be further used to determine the codebook size of the third HARQ-ACK through RRC signaling, which specifically includes but is not limited to the following parameters:

In the following, O _{ACK, process} will be used to represent the codebook size of the third HARQ-ACK generated in the third generation method C, then,

a) When the base station does not configure any of the above parameters for the UE, OACK, process = P;

b) When the PDSCH-CodeBlockGroupTransmission parameter is configured (other parameters are not configured), O _{ACK, process} = G*P;

c) When the maxNrofCodeWordsScheduledByDCI parameter is configured (other parameters are not configured), O _{ACK, process} = 2*P

d) When the maxNrofCodeWordsScheduledByDCI parameter and the harq-ACK-SpatialBundlingPUCCH parameter are configured (other parameters are not configured), O _{ACK, process} = P;

e) When the PDSCH-CodeBlockGroupTransmission parameter and the maxNrofCodeWordsScheduledByDCI parameter are configured (other parameters are not configured), O _ACK, _process = 2*G*P.

It should be understood that the foregoing _{calculation formula for the codebook size O ACK, process} of the third HARQ-ACK is only exemplary. In practical applications, the codebook size O _{ACK, process} can also be configured under different parameter configuration combinations. , There are different calculation formulas, and the parameters that can affect the codebook calculation formula are not limited to the above-mentioned cases.

FIG. 8A is a flowchart of an information sending method provided by an embodiment of the application.

In step 802, the first device generates HARQ-ACK, where the codebook size of the HARQ-ACK is related to the number of HARQ processes of the first device.

In an embodiment of the present application, the first device may be UE 302, for example, and the second device may be base station 301, for example. The first device may determine whether to generate HARQ-ACK in the first generation mode A or the third generation mode C according to the indication parameter sent by the second device. The indication parameter is related to the number of HARQ processes of the first device, and accordingly, the The generated HARQ-ACK is also related to the number of HARQ processes. The indication information sent by the second device to the first device may indicate the manner in which the first device generates HARQ-ACK, so that the codebook size of the HARQ-ACK sent by the first device is the same as the HARQ process supported or configured by the first device The quantity is related, so as to optimize the codebook size of the HARQ-ACK sent by the first device, for example, reduce the number of feedback bits of the HARQ-ACK sent by the first device, thereby improving its uplink transmission efficiency, thereby reducing the occupation of network resources.

In another embodiment of the present application, the first device compares the codebook size of the first HARQ-ACK related to the first generation mode A and the codebook size of the first HARQ-ACK related to the third generation mode C , And then determine the HARQ-ACK generated by the first device, where the third generation method C is related to the number of the HARQ process.

In step 804, the first device sends the HARQ-ACK to the second device.

FIG. 8B is a flowchart of an information processing method provided by an embodiment of this application.

In step 812, the second device receives the HARQ-ACK of the first device, and the codebook size of the HARQ-ACK is related to the number of HARQ processes of the first device.

Specifically, in an embodiment of the present application, the first device may be UE 302, for example, and the second device may be base station 301, for example. The second device sends instruction information to the first device to instruct the first device in what manner to generate HARQ-ACK. For example, the instruction information may instruct the first device to generate HARQ-ACK in the first generation mode A, the second generation mode B, and the third generation One of the generation methods in Method C, or a combination of multiple generation methods, is used to generate the HARQ-ACK. The indication information sent by the second device to the first device may indicate the manner in which the first device generates the HARQ-ACK, thereby optimizing the codebook size of the HARQ-ACK sent by the first device, thereby reducing the occupation of network resources.

In step 814, the second device processes the HARQ-ACK according to the codebook size of the HARQ-ACK. Specifically, the second device resends some data blocks according to the HARQ-ACK of the first device.

Figures 9-12 are flowcharts of the information sending method provided by the embodiments of this application.

In the information sending method 900A shown in FIG. 9A, a first device, such as a UE, receives indication information from a second device, such as a base station, and determines a HARQ-ACK method according to the indication information.

In step 902, the UE receives indication information from the base station. Wherein, the indication information may be included in radio resource control RRC information or media access control layer control unit MAC CE information or downlink control information DCI sent by the base station. In an embodiment of the present application, the system information block SIB sent by the base station to the UE includes the indication information, and the SIB belongs to a type of RRC information.

In step 904, the UE determines whether the indication information indicates that it generates HARQ-ACK in the third generation method C. If the result of the judgment is yes, then enter the process step of the third generation mode C shown in FIG. 7; if the result of the judgment is no, then enter the first generation method A shown in FIG. 5B or the second generation method A shown in FIG. 6B. The process steps of method B are generated. The size of the HARQ-ACK codebook sent by the UE can be optimized by the manner in which the indication information instructs the UE to generate the HARQ-ACK.

In step 910, the UE sends the HARQ-ACK generated in the first or second or third generation manner to the base station.

In another embodiment of the present application, the information sending method 900 may further include the following steps:

In step 906, the first device may determine the HARQ-ACK of the first device according to the third HARQ-ACK generated by the third generation method C. It should be understood that step 906 may be omitted, and the first device may determine in the process step of the third generation method C that the third HARQ-ACK generated by it is the HARQ-ACK of the first device.

In step 908, the first device may determine the HARQ-ACK of the first device according to the first HARQ-ACK or the second HARQ-ACK generated by the first generation mode A or the second generation mode B. It should be understood that step 908 can also be omitted, and the first device can determine that the first HARQ-ACK or second HARQ-ACK generated by it is the first HARQ-ACK or the second HARQ-ACK in the process steps of the first generation mode A or the second generation mode B. HARQ-ACK of a device.

In a specific embodiment, step 904 may further include: whether the indication information indicates that the HARQ-ACK of the first device is generated by the first generation method A, and/or whether the indication information indicates that the second generation method B is used for generating the first device. For the HARQ-ACK of a device, if the result of the judgment is yes, it enters the process steps of the first generation method A or the second generation method B. If the result of the judgment is no, enter the third generation method C shown in FIG. 7 Of the process steps.

In another specific embodiment, the indication information received in step 902 includes a first threshold, and in step 904, the UE further compares the number of HARQ processes with the first threshold. When the number of HARQ processes is less than the first threshold, it means that the indication information indicates that it generates HARQ-ACK through the third generation method C; when the number of HARQ processes is greater than or equal to the first threshold, it means that the indication information indicates It generates HARQ-ACK in the first generation mode A or the second generation mode B. When the number of HARQ processes configured by the base station for the UE is small, for example, for network reasons, the base station configures the number of HARQ processes for the UE that is less than the first threshold, which means that the UE uses fewer parallel HARQ processes, and therefore instructs the UE to pass the first threshold. The third generation method C to generate HARQ-ACK can optimize the size of the HARQ-ACK codebook it generates and save uplink transmission resources.

In another specific embodiment, the indication information received by the UE from the base station is used to indicate that when the UE receives downlink data on the BWP of the target bandwidth, the manner in which the UE generates HARQ-ACK is determined, wherein the HARQ generated by the UE -ACK is the HARQ-ACK of the downlink data received on the target BWP. For example, the configuration information (such as RRC information) sent by the base station to the UE may configure the UE to generate HARQ-ACK in the first generation mode A on the target BWP1, and generate HARQ-ACK in the third generation mode C on the target BWP2. When the UE receives the first downlink data on BWP1, the UE will generate the first HARQ-ACK of the first downlink data in the first generation mode A, and the UE is configured or instructed to jump from BWP1 to BWP2 to receive it For the third downlink data, the UE will generate the third HARQ-ACK of the third downlink data in the third generation mode C. For various reasons, such as network reasons, the base station may instruct the UE to jump on different BWPs, such as the aforementioned target BWP1 and target BWP2, where the target BWP1 is greater than the target BWP2. When the UE receives data on the smaller target BWP1, it means that the UE can use relatively few network resources. Therefore, the UE is instructed to generate HARQ-ACK through the third generation method C every time it switches to the target BWP1. Optimize the codebook size of HARQ-ACK to save resources.

The information sending method 900B shown in FIG. 9B is similar to the information sending method 900A, wherein the same or similar steps are denoted by the same or similar reference numerals.

Different from the information sending method 900A, in the method 900B, through steps 9041-9043, the UE can determine whether the indication information indicates that it uses the first generation method A, or the second generation method B, or the third generation method C. , To generate HARQ-ACK, and enter the first generation mode A, the second generation mode B, or the third generation mode C according to the judgment result.

Similarly, the method 900B may further include

steps

9081, 9082, 906 to generate the first, second, or third generation method according to the first generation method A, the second generation method B, or the third generation method C, respectively. HARQ-ACK to determine the HARQ-ACK of the first device. It should be understood that

steps

9081, 9082, 906 can be omitted in the method 900B, and the first device can determine the generated data in the process steps of the first generation mode A, the second generation mode B, or the third generation mode C. The first HARQ-ACK, the second HARQ-ACK or the third HARQ-ACK is the HARQ-ACK of the first device.

It should be understood that the indication information sent by the base station can instruct the UE to generate HARQ-ACK in different generation methods according to different situations, which improves the flexibility of HARQ-ACK generation and optimizes the codebook size of HARQ-ACK.

In the embodiment shown in FIG. 10, another information sending method 1000 of the present application is shown, which specifically includes the following steps:

In step 1002, the UE determines the first codebook size of HARQ-ACK, where the first codebook size is related to the first generation mode A, that is, related to the semi-static codebook generation mode. For example, the first codebook size may be the codebook size obtained after HARQ-ACK is generated in the first generation mode A, or the first codebook size may be obtained from the PDSCH candidate position and the first calculation result associated with the K1 set .

In step 1004, the UE determines the second codebook size of HARQ-ACK, where the second codebook size is related to the third generation mode C, that is, related to the dynamic codebook generation mode. For example, the second codebook size may be the codebook size obtained after HARQ-ACK is generated in the third generation mode C, or the second codebook size may be obtained by the second calculation result associated with the number of HARQ processes.

In step 1006, the UE compares the foregoing first codebook size with the second codebook size, and determines the HARQ-ACK of the UE according to the comparison result.

In an embodiment of the present application, when the first codebook size is less than or equal to the second codebook size, the HARQ-ACK finally determined by the UE is generated by the first generation method A and has the first codebook size; When the first codebook size is greater than the second codebook size, the HARQ-ACK finally determined by the UE is generated by the third generation method C and has the second codebook size. By comparing the size of the codebook generated by different codebook generation methods, the HARQ-ACK with a smaller codebook size is determined for the UE, which can save the uplink for the UE without changing the feedback information conveyed by the HARQ codebook. Transmission resources, and improve the uplink transmission efficiency.

It should be understood that the HARQ-ACK generation in the first generation mode A can be performed in step 1002, and the first codebook size of the HARQ-ACK can be determined from this, and it can also be performed in step 1006 based on the result of the comparison; Therefore, the generation of HARQ-ACK in the third generation mode C can be performed in step 1004 or in the subsequent step 1006, which should not be used as a limitation to the present application.

In step 1010, the UE sends the final HARQ-ACK to the base station.

For example, in 1002, the UE generates HARQ-ACK according to the first generation method A and determines the first codebook size. In 1004, the UE determines the second codebook size according to the second calculation result associated with the number of HARQ processes In 1006, the UE compares the first and second codebook sizes, and when the first codebook size is greater than the second codebook size, the UE further generates HARQ-ACK according to the third generation method C, and determines that it is the UE In 1010, the UE sends the HARQ-ACK generated in the third generation mode C to the base station.

As another example, when carrier aggregation CA is configured, the UE has multiple activated cells (Cells), where a cell refers to an area that logically provides services for users. Each carrier component CC in the carrier aggregation CA corresponds to a cell, such as a primary cell (Primary Cell) that uses a primary component carrier (Primary Component Carrier), and a secondary cell (Secondary Cell) that uses other carrier components. Taking a cell as an example to further describe the information sending method 1000, since the UE has multiple activated cells, in 1002, the UE determines the first codebook size related to the first generation mode A, and the first codebook size Obtained from the PDSCH candidate position and the first calculation result associated with the K1 set, and the first codebook size is obtained by traversing the multiple cells to obtain the codebook size and level of the multiple cells related to the first generation mode A That is, the codebook size of each cell is related to the first generation mode A, and the first codebook size is the sum of the codebook sizes of multiple cells. In 1004, the UE determines a second codebook size related to the third generation method C, the second codebook size is obtained from the second calculation result associated with the number of HARQ processes, and the second codebook size is obtained by traversing the The codebook size of the multiple cells related to the third generation mode C is obtained by multiple cells and concatenated, that is, the codebook size of each cell is related to the third generation mode C, and the second codebook The size is the sum of the codebook sizes of multiple cells. In 1006, the UE compares the first codebook size and the second codebook size obtained by traversing multiple cells to finally determine the HARQ-ACK of the UE, and in 1010 sends the determined HARQ-ACK to the base station. Wherein, when the first codebook size is less than or equal to the second codebook size, the finally determined HARQ-ACK should be generated by traversing multiple cells in the first generation mode A and have the first codebook size, and when When the first codebook size is greater than the second codebook size, the finally determined HARQ-ACK should be generated by the third generation mode C traversing multiple cells and have the second codebook size.

It should be understood that correspondingly, in the above-mentioned embodiment, the HARQ-ACK generated by traversing multiple cells in the first generation mode A may be performed in

step

1002 or 1006, and the HARQ-ACK generated by traversing multiple cells in the third generation mode C The generated HARQ-ACK may be performed in

step

1004 or 1006, which will not be repeated here.

FIG. 11 shows another information sending method 1100 of the present application, and the method 1100 is another specific implementation of the method 1000. In the information sending method 1100, the UE first generates the first HARQ-ACK in the first generation mode A, that is, the semi-static codebook generation mode, and then generates the third HARQ-ACK in the third generation mode C, that is the dynamic codebook generation mode. .

In step 1102, the UE compares the codebook size of the first HARQ-ACK with the codebook size of the second HARQ-ACK. For example, the UE may determine in 1102 whether the codebook size of the first HARQ-ACK is larger than the third HARQ-ACK If the judgment result is yes, then go to step 1106; if the judgment result is no, then go to step 1108.

In step 1106, since the codebook size of the first HARQ-ACK is larger than the third HARQ-ACK, it is determined that the HARQ-ACK of the UE is the third HARQ-ACK with a smaller codebook size.

In step 1108, since the codebook size of the first HARQ-ACK is not greater than the third HARQ-ACK, it is determined that the HARQ-ACK of the UE is the first HARQ-ACK generated according to the semi-static codebook generation manner.

In step 1110, the UE sends the final HARQ-ACK to the base station.

Similarly, when the UE has multiple activated cells, the step of first generating the first HARQ-ACK by the UE in the first generation mode A includes: traversing the multiple cells in the first generation mode A to obtain the multiple cell levels The first HARQ-ACK of the connection; and the step of generating the third HARQ-ACK in the third generation mode C includes traversing the multiple cells in the third generation mode C to obtain the third HARQ-ACK of the multiple cell concatenation . In 1102, the UE compares the codebook size of the first HARQ-ACK of the multiple cell concatenation and the codebook size of the third HARQ-ACK of the multiple cell concatenation, and determines the HARQ-ACK of the UE in 1106. The ACK is the third HARQ-ACK with a smaller codebook size, or it is determined in 1108 that the HARQ-ACK of the UE is the first HARQ-ACK.

FIG. 12 shows another information sending method 1200 of the present application. The information sending method 1200 is applicable to a scenario where a UE is configured with carrier aggregation CA. When carrier aggregation CA is used, there will be multiple cells (Cell), where a cell refers to an area that logically provides services for users. Each carrier component CC in the carrier aggregation CA corresponds to a cell, for example, a primary cell (Primary Cell) that uses a primary component carrier (Primary Component Carrier), and a secondary cell (Secondary Cell) that uses other carrier components.

In the embodiment shown in FIG. 12, a cell is taken as an example to describe the information sending method 1200. Among them, a scenario where the UE has multiple activated cells (activated with multiple cells), for example, the UE has N activated cells: the first cell, the second cell, ..., the Nth cell. In the method 1200 shown in FIG. 12B, the UE generates the HARQ-ACK corresponding to the cell in each cell, and then, in step 1212, concatenates the N generated HARQ-ACKs respectively with the HARQ-ACKs corresponding to each cell. To generate the final HARQ-ACK. In step 1214, the UE sends the final HARQ-ACK to the base station.

Wherein, for the UE to generate the HARQ-ACK corresponding to the cell in each cell, refer to the steps before 910 in the information sending method 900A of FIG. 9A, or the steps before 910 in the information sending method 900B of FIG. 9B, or Refer to the steps before 1010 in the information transmission method 1000 of FIG. 10 or the steps before 1110 in the information transmission method 1100 of FIG. 11. The information transmission method 1000 of FIG. 10 in step 1010 in the previous example, to generate the M cell corresponding to the HARQ-ACK method D _M, FIG. 12A, D _M comprising the steps of:

In step 1202, the first codebook size of the HARQ-ACK corresponding to the Mth cell is determined, where the first codebook size is related to the first generation mode A, that is, related to the semi-static codebook generation mode.

In step 1204, the second codebook size of the HARQ-ACK corresponding to the Mth cell is determined, where the second codebook size is related to the third generation mode C, that is, related to the dynamic codebook generation mode.

In step 1206, the UE compares the first codebook size with the second codebook size. For example, the UE judges whether the first codebook size is larger than the second codebook size, if the result of the judgment is yes, then go to step 1208, and if the result of the judgment is no, then go to step 1210.

In step 1208, if the first codebook size is greater than the second codebook size, the HARQ-ACK corresponding to the Mth cell is generated in the first generation mode A and has the second codebook size.

In step 1210, if the first codebook size is less than or equal to the second codebook size, the HARQ-ACK corresponding to the Mth cell is generated in the third generation mode C and has the first codebook size.

M is generated with the first cell corresponding to the HARQ-ACK in Method D _M, the generated first cell M HARQ-ACK is a HARQ-ACK with a smaller size codebook according to the determined different codebook generation method, Therefore, in the information sending method 1200, the final HARQ-ACK generated by the concatenation in step 1212 should have a minimized codebook size. Because the HARQ-ACK of the UE has an optimized codebook size, the efficiency of uplink data transmission can be improved, thereby improving the resource utilization rate of the entire network.

FIG. 13 shows another embodiment of the present application to provide a communication system 1300. The communication system 1300 is mainly applied to point-to-point (device to device, D2D), eD2D, vehicle-to-vehicle (V2V), and vehicle-to-vehicle (V2V). Scenarios such as V2X and the Internet of Everything can include UE 1301 and UE 1302.

Among them, UE 1301 and UE 1302 may be two peer user nodes, and the two can directly communicate.

In the embodiment of the present application, the above HARQ technology can be used for data transmission between the UE 1301 and the UE 1302. For the HARQ technology, refer to the record in the above embodiment.

It should be noted that the communication system 300 only schematically shows one base station 301 and one UE 302. The number of base stations 301 and UE 302 is not a limitation of this application. The communication system 300 can be set up as required. The number of base stations 301 and UEs 302. Similarly, the communication system 1300 only schematically shows one UE 1301 and one UE 1302. The number of UE 1301 and UE 1302 is not a limitation of the present application. The communication system 1300 can be configured with any number according to requirements. UE 1301 and UE 1302.

FIG. 14 shows a schematic diagram of a possible structure of the base station involved in the foregoing embodiment. The base station may be the base station 301 shown in FIG. 3, and may execute the information processing method shown in FIG. 8b. As shown in FIG. 14, the base station may include a transceiver 1401 and a controller/processor 1402. The transceiver 1401 may be used to support the sending and receiving of information between the base station and the UE in the foregoing embodiment, and to support radio communication between the UE and other UEs. The controller/processor 1402 may be used to perform various functions for communicating with UEs or other network devices. In the uplink, the uplink signal from the UE is received via an antenna, mediated by the transceiver 1401, and further processed by the controller/processor 1402 to restore the service data and signaling information sent to the UE. On the downlink, service data and signaling messages are processed by the controller/processor 1402, and mediated by the transceiver 1401 to generate a downlink signal, which is transmitted to the UE via an antenna. The transceiver 1401 is also used to receive the HARQ-ACK of the hybrid automatic repeat request information sent by the UE. The controller/processor 1402 may also be used to perform the processing procedure in FIG. 8B and/or other procedures used in the technology described in this application, such as sending RRC/MAC CE/DCI containing indication information to instruct the UE to How to generate the HARQ-ACK, or instruct the UE to generate the HARQ-ACK in different generation methods on different BWPs, and process the HARQ-ACK according to the codebook size of the HARQ-ACK sent by the UE, etc. The base station may also include a memory 1403, which may be used to store program codes and data of the base station. The base station may also include a communication unit 1404, which is used to support the base station to communicate with other network entities.

It can be understood that FIG. 14 only shows a simplified design of the base station. In practical applications, the base station may include any number of transmitters, receivers, processors, controllers, memories, communication units, etc., and all base stations that can implement the present invention fall within the protection scope of the present invention.

FIG. 15 shows a simplified schematic diagram of a possible design structure of the UE involved in the foregoing embodiment. The UE may be UE 302 as shown in FIG. 3, or UE 1301 or UE 1302 in FIG. 13 , And the information sending method shown in Figure 8a and Figure 9 to Figure 12 can be implemented. The UE may include a transceiver 151, a controller/processor 152, and may also include a memory 153 and a modem processor 154.

The transceiver 151 adjusts (for example, analog conversion, filtering, amplification, and up-conversion, etc.) the output samples and generates an uplink signal, which is transmitted to the base station described in the above-mentioned embodiment via an antenna. On the downlink, the antenna receives the downlink signal transmitted by the base station in the above embodiment. The transceiver 151 adjusts (eg, filters, amplifies, down-converts, and digitizes, etc.) the signal received from the antenna and provides input samples. In the modem processor 154, the encoder 1541 receives service data and signaling messages to be transmitted on the uplink, and processes the service data and signaling messages (for example, formatting, encoding, and interleaving). The modulator 1542 further processes (for example, symbol mapping and modulation) the encoded service data and signaling messages and provides output samples. The demodulator 1544 processes (e.g., demodulates) the input samples and provides symbol estimates. The decoder 1543 processes (e.g., deinterleaves and decodes) the symbol estimation and provides decoded data and signaling messages sent to the UE. The encoder 1541, the modulator 1542, the demodulator 1544, and the decoder 1543 may be implemented by a synthesized modem processor 154. These units are processed according to the radio access technology adopted by the radio access network (for example, the access technology of LTE and other evolved systems).

The transceiver 151 is used to perform communication with the base station, such as sending hybrid automatic repeat request information to the base station. The memory 153 is used to store program codes and data for the UE.

As shown in FIG. 16, the embodiment of the present application also discloses an information sending device 16. The information sending device 16 may be UE 302 in FIG. 3, or UE 1301 or UE 1302 in FIG. 13, and can perform Figure 8a, and Figure 9 to Figure 12 show the information sending method. As shown in FIG. 16, the information sending device 16 includes: a processing unit 1601, configured to generate hybrid automatic repeat request determination information HARQ-ACK according to the information sending method provided in this application; and a transceiver unit 1602, configured to send the information to the second device HARQ-ACK, where the codebook size of the HARQ-ACK is related to the number of HARQ processes for hybrid automatic repeat request.

In an example of the present application, the transceiver unit 1602 accepts the instruction information sent by the second device, for example, the instruction information included in RRC/MAC CE/DCI, to instruct the processing unit 1601 according to the first generation mode A/second generation mode One of B/third generation method C generates HARQ-ACK, or instructs the processing unit 1601 to generate HARQ-ACK in the corresponding above-mentioned generation method according to the BWP where the UE is located.

In another example of the present application, the processing unit 1601 may determine the first codebook size and the second codebook size according to different HARQ-ACK generation methods, and determine the size of the first and second codebook sizes, where , The first codebook size is related to the first generation method A (semi-static codebook generation method), and the second codebook size is related to the third generation method C (the generation method of generating codebooks according to the number of HARQ processes). When it is determined that the first codebook size is less than or equal to the second codebook size, the HARQ-ACK generated by the processing unit 1601 is generated according to the first generation method A and has the first codebook size; when it is determined When the first codebook size is greater than the second codebook size, the HARQ-ACK generated by the processing unit 1601 is generated according to the third generation method C and has the second codebook size.

As shown in FIG. 17, an embodiment of the present application also discloses an information processing device 17, which may be the base station 301 in FIG. 3, or UE 1301 or UE 1302 in FIG. 13, and can execute the information shown in FIG. 8b. Approach. The information processing device 17 includes:

The transceiving unit 1701 is configured to receive the HARQ-ACK determination information of the hybrid automatic repeat request of the first device, where the codebook size of the HARQ-ACK is related to the number of hybrid automatic repeat request HARQ processes of the first device;

The processing unit 1702 is configured to process the HARQ-ACK according to the codebook size of the HARQ-ACK.

In an example of the present application, the transceiving unit 1701 sends RRC/MAC CE/DCI containing indication information to the first device. The indication information is used to indicate that the first device is used to generate HARQ-ACK in the above-mentioned first generation mode. A, or the second generation method B, or the third generation method C.

As shown in FIG. 18, the present application also provides a communication system 18, which may include a first device 1801 and a second device 1802, which may be the base station 301 and the UE 302 in FIG. 3, or the communication system 18 in FIG. For UE 1301 and UE 1302 in, for the introduction of the first device and the second device, please refer to the above record.

The present application also provides a computer-readable storage medium, which is characterized by including instructions, which when run on a communication device, cause the communication device to execute the signal sending method or the signal receiving method shown in the above-mentioned embodiments.

The present application also provides a chip, which is connected to a memory, and is used to read and execute a software program stored in the memory to implement the signal sending method or the signal receiving method described in the foregoing embodiment.

The present application also provides a device, including a processor and a memory, wherein the memory stores a program or instruction, and when the program or instruction is executed by the processor, the device is described in the above-mentioned embodiment. The method of sending or receiving signals.

The steps of the method or algorithm described in conjunction with the disclosure of the present invention can be implemented in a hardware manner, or can be implemented in a manner that a processor executes software instructions. Software instructions can be composed of corresponding software modules, which can be stored in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, mobile hard disk, CD-ROM or any other form of storage known in the art Medium. An exemplary storage medium is coupled to the processor, so that the processor can read information from the storage medium and write information to the storage medium. Of course, the storage medium may also be an integral part of the processor. The processor and the storage medium may be located in the ASIC. In addition, the ASIC may be located in the user equipment. Of course, the processor and the storage medium may also exist as discrete components in the user equipment.

Those skilled in the art should be aware that, in one or more of the above examples, the functions described in the present invention can be implemented by hardware, software, firmware, or any combination thereof. When implemented by software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on the computer-readable medium. The computer-readable medium includes a computer storage medium and a communication medium, where the communication medium includes any medium that facilitates the transfer of a computer program from one place to another. The storage medium may be any available medium that can be accessed by a general-purpose or special-purpose computer.

The specific embodiments described above further describe the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention. The protection scope, any modification, equivalent replacement, improvement, etc. made on the basis of the technical solution of the present invention shall be included in the protection scope of the present invention.

Those skilled in the art should understand that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, this application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, this application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

This application is described with reference to flowcharts and/or block diagrams of methods, equipment (systems), and computer program products according to this application. It should be understood that each process and/or block in the flowchart and/or block diagram, and the combination of processes and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing equipment to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing equipment are used to generate It is a device that realizes the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device. The device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment. The instructions provide steps for implementing the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

Obviously, those skilled in the art can make various changes and modifications to the application without departing from the spirit and scope of the application. In this way, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, then this application is also intended to include these modifications and variations.

Claims

A method for sending information, characterized in that the method includes:

The first device generates the hybrid automatic repeat request determination information HARQ-ACK of the first device; and

The first device sends the HARQ-ACK of the first device to the second device,

Wherein, the HARQ-ACK codebook size of the first device is related to the number of HARQ processes of the first device.
The method according to claim 1, wherein generating the HARQ-ACK of the first device comprises, according to the instruction information sent by the second device, in a first generation mode, a second generation mode, and a third generation One of the ways to generate the HARQ-ACK of the first device,

Wherein, the first generation method generates the HARQ-ACK of the first device according to the candidate position of the physical downlink shared channel PDSCH and the K1 set, and the second generation method generates the HARQ-ACK of the first device according to the data allocation indication DAI in the downlink control information DCI. The HARQ-ACK of the first device is generated, and the third generation manner is to generate the HARQ-ACK of the first device according to the number of HARQ processes.
The method according to claim 2, wherein the indication information comprises a first threshold, and the indication information sent by the second device is generated in the first generation manner and the second generation The method and one of the third generation method to generate the HARQ-ACK of the first device includes:

When the number of HARQ processes is less than the first threshold, generate the HARQ-ACK of the first device in the third generation manner; and

When the number of HARQ processes is greater than or equal to the first threshold, the HARQ-ACK of the first device is generated in the first generation manner or in the second generation manner.
The method according to claim 2, wherein the indication information is used to determine that when the first device receives downlink data on the BWP of the target bandwidth, the first generation mode and the second generation mode are used. One of the third generation manners is used to generate the HARQ-ACK of the first device, where the HARQ-ACK of the first device is the HARQ-ACK of the downlink data on the target BWP.
The method according to any one of claims 2-4, wherein the method further comprises:

Receive radio resource control RRC information or media access control layer control unit MAC CE information or downlink control information DCI from the second device, which includes the indication information.
The method according to claim 5, wherein the method further comprises:

The RRC includes a system information block SIB, and the SIB includes the indication information.
The method according to any one of claims 2-6, wherein the third generation method further determines the HARQ of the first device corresponding to the feedback bit of each HARQ process according to the sequence number of the HARQ process. -Position in ACK.
The method according to claim 1, wherein generating the HARQ-ACK of the first device comprises:

Determining a first codebook size of HARQ-ACK of the first device, where the first codebook size is related to a first generation mode;

Determining a second codebook size of HARQ-ACK of the first device, where the second codebook size is related to a third generation mode;

When the first codebook size is less than or equal to the second codebook size, the HARQ-ACK of the first device is generated in the first generation method and has the first codebook size, where In the first generation manner, the HARQ-ACK of the first device is generated according to the candidate position of the physical downlink shared channel PDSCH and the K1 set;

When the first codebook size is greater than the second codebook size, the HARQ-ACK of the first device is generated in the third generation mode and has the second codebook size, where all The third generation manner generates the HARQ-ACK of the first device according to the number of HARQ processes.
The method according to claim 8, wherein the first device has a plurality of activated cells, wherein,

The HARQ-ACK of the first device generated in the first generation mode is generated by traversing each of the multiple activated cells in the first generation mode and has the first code HARQ-ACK of the first device of this size; and

The HARQ-ACK of the first device generated in the third generation mode is generated by traversing each of the multiple activated cells in the third generation mode and has the second code HARQ-ACK of the first device of this size.
The method according to claim 1, wherein the first device has multiple activated cells, and generating the HARQ-ACK of the first device comprises:

Generating multiple HARQ-ACKs corresponding to the cells for the multiple activated cells, and concatenating the multiple HARQ-ACKs corresponding to the cells to generate HARQ-ACKs of the first device,

Wherein, generating each HARQ-ACK corresponding to the cell includes:

Determining the first codebook size of the HARQ-ACK corresponding to the cell, where the first codebook size is related to a first generation mode;

Determining the second codebook size of the HARQ-ACK corresponding to the cell, where the second codebook size is related to a third generation mode;

When the first codebook size is less than or equal to the second codebook size, the HARQ-ACK corresponding to the cell is generated in a first generation manner and has the first codebook size;

When the first codebook size is greater than the second codebook size, the HARQ-ACK corresponding to the cell is generated in a third generation manner and has the second codebook size.
The method according to claim 1, wherein the number of HARQ processes is the number of HARQ processes supported by the first device, or the number of HARQ processes configured by the first device.
An information processing method, characterized in that the method includes:

Receiving the hybrid automatic repeat request confirmation information HARQ-ACK of the first device;

Process the HARQ-ACK according to the codebook size of the HARQ-ACK;

Wherein, the codebook size of the HARQ-ACK is related to the number of HARQ processes of the hybrid automatic repeat request of the first device.
The method according to claim 12, wherein the method further comprises:

Sending instruction information to the first device to instruct the first device to generate the HARQ-ACK in one of a first generation manner, a second generation manner, and a third generation manner,

Wherein, the first generation method generates the HARQ-ACK according to the candidate position of the physical downlink shared channel PDSCH and the K1 set, and the second generation method generates the HARQ according to the data allocation indicator DAI in the downlink control information DCI -ACK, the third generation manner is to generate the HARQ-ACK according to the number of HARQ processes.
The method according to claim 13, wherein the indication information comprises a first threshold, which is used to instruct the first device according to the comparison result of the first threshold and the number of HARQ processes to first One of a generation method, a second generation method, and a third generation method is used to generate the HARQ-ACK.
The method according to claim 13, wherein the indication information is used to instruct the first device to use the first generation mode and the second generation mode when receiving downlink data on the BWP of the target bandwidth. And one of the third generation manners to generate the HARQ-ACK, wherein the HARQ-ACK is the HARQ-ACK of the downlink data on the target BWP.
The method according to any one of claims 13-15, wherein sending the indication information to the first device comprises sending radio resource control RRC information including the indication information to the first device or Media access control layer control unit MAC CE information or downlink control information DCI.
The first device, characterized in that, the first device includes:

A processor, configured to generate the HARQ-ACK of the hybrid automatic repeat request determination information of the first device;

The transceiver is used to send the HARQ-ACK of the first device to the second device,

Wherein, the HARQ-ACK codebook size of the first device is related to the number of HARQ processes of the first device.
The first device according to claim 17, wherein the transceiver is further configured to receive instruction information of the second device, and the processor generates the instruction information in a first manner and a second generation according to the instruction information. One of the third generation method and the third generation method to generate the HARQ-ACK of the first device,

Wherein, the first generation method generates the HARQ-ACK of the first device according to the candidate position of the physical downlink shared channel PDSCH and the K1 set, and the second generation method generates the HARQ-ACK of the first device according to the data allocation indication DAI in the downlink control information DCI. The HARQ-ACK of the first device is generated, and the third generation manner is to generate the HARQ-ACK of the first device according to the number of HARQ processes.
The first device according to claim 17, wherein the processor is further configured to:

Determining a first codebook size of HARQ-ACK of the first device, where the first codebook size is related to a first generation mode;

Determining a second codebook size of HARQ-ACK of the first device, where the second codebook size is related to a third generation mode;

Determining the HARQ-ACK of the first device,

Wherein, when the first codebook size is less than or equal to the second codebook size, the HARQ-ACK of the first device is generated in the first generation mode and has the first codebook size , The first generation method generates the HARQ-ACK of the first device according to the candidate position of the physical downlink shared channel PDSCH and the K1 set,

When the first codebook size is greater than the second codebook size, the HARQ-ACK of the first device is generated in the third generation mode and has the second codebook size, and The third generation manner generates the HARQ-ACK of the first device according to the number of HARQ processes.
The second device is characterized in that it includes:

A transceiver, configured to receive the HARQ-ACK confirmation information of the hybrid automatic repeat request of the first device;

The processor is configured to process the HARQ-ACK according to the HARQ-ACK codebook size, where the HARQ-ACK codebook size is related to the number of hybrid automatic repeat request HARQ processes of the first device.
The second device according to claim 20, wherein the transceiver is further used for:

Sending instruction information to the first device, where the instruction information is used to instruct the first device to generate the HARQ-ACK in one of a first generation manner, a second generation manner, and a third generation manner,

Wherein, the first generation method generates the HARQ-ACK according to the candidate position of the physical downlink shared channel PDSCH and the K1 set, and the second generation method generates the HARQ according to the data allocation indicator DAI in the downlink control information DCI -ACK, the third generation manner is to generate the HARQ-ACK according to the number of HARQ processes.
A communication system, characterized by comprising the first device according to any one of claims 17 to 19 and the second device according to any one of claims 20 to 21.
A computer-readable storage medium, characterized by comprising instructions, which when running on a communication device, causes the communication device to execute the method according to any one of claims 1 to 16.
A chip, characterized in that the chip is connected to a memory, and is used to read and execute a software program stored in the memory to implement the method according to any one of claims 1 to 16.
A device comprising a processor and a memory, characterized in that a program or instruction is stored on the memory, and when the program or instruction is executed by the processor, the implementation is as described in any one of claims 1-16 The method described.